KB Hypereutectic Piston Kit +.020" Bore (KB263.020)
$249.95
$208.43
(You save
$41.52
)
UPC:
800745061034
- Manufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloy
- Allow a tighter fit and longer piston and ring life
- Diamond-machined pistons are held to plus or minus one gram weight and less than one-half-thousandth-inch (.0005") tolerances from piston to piston
- Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings
- Replacement piston rings and pin lock rings available separately
- KB pistons can be installed tighter than other pistons. This results in less piston rock and better ring seal. Please read instructions included with piston for correct piston clearance.
- Due to the thermal conductivity and design of KB pistons, special attention is required to the top ring end gap. Please read instructions furnished with piston for correct ring installation.
- 3.437 in. Bore Size.
- 9.0:1 Compression Ratio.
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1958-1964 | Harley-Davidson | Duo Glide FL | |
| 1958-1964 | Harley-Davidson | Duo Glide FLF | |
| 1958-1964 | Harley-Davidson | Duo Glide FLH | |
| 1958-1964 | Harley-Davidson | Duo Glide FLHF | |
| 1965-1969 | Harley-Davidson | Electra Glide FLFB | |
| 1970-1979 | Harley-Davidson | Electra Glide FLH | |
| 1965-1969 | Harley-Davidson | Electra Glide FLHB | |
| 1970-1972 | Harley-Davidson | Electra Glide FLHF | |
| 1965-1969 | Harley-Davidson | Electra Glide FLHFB | |
| 1941-1950 | Harley-Davidson | F V Twin 74 | |
| 1979 | Harley-Davidson | Fat Bob FXEF | |
| 1941-1948 | Harley-Davidson | FL V Twin 74 | |
| 1949-1957 | Harley-Davidson | Hydra Glide FL | |
| 1953-1957 | Harley-Davidson | Hydra Glide FLF | |
| 1955-1957 | Harley-Davidson | Hydra Glide FLH | |
| 1955-1957 | Harley-Davidson | Hydra Glide FLHF | |
| 1977-1979 | Harley-Davidson | Low Rider FXS | |
| 1974-1978 | Harley-Davidson | Super Glide Electric Start FXE | |
| 1971-1978 | Harley-Davidson | Super Glide FX | |